AZ23C33-TP Equivalent & Substitute Parts

Part Overview

The AZ23C33-TP is a surface-mount Zener diode array manufactured by Micro Commercial Co, classified as a 33V Zener diode in SOT-23 packaging. This component features a 1 Pair Common Anode configuration with 300 mW maximum power dissipation and ±5% voltage tolerance. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 33V Zener diode array functionality in surface-mount form factors.

Substiute Parts

AZ23C33-TP

Micro Commercial CoIn Stock: 3479AZ23C33-TP Datasheet

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AZ23C33-7-F

Diodes IncorporatedIn Stock: 79341AZ23C33-7-F Datasheet

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AZ23C33-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 17448AZ23C33-E3-08 Datasheet

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MMBZ33VALT1G

onsemiIn Stock: 305300MMBZ33VALT1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AZ23C33-TP is determined by strict alignment with the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Zener voltage nominal rating: 33V
• Voltage tolerance: ±5%
• Maximum power dissipation: 300 mW
• Maximum impedance: 80 Ohms
• Configuration: 1 Pair Common Anode
• Package designation: SOT-23-3 (TO-236-3, SC-59)
• Mounting type: Surface Mount
• RoHS3 compliance status
• Moisture sensitivity level: 1 (Unlimited)

Substitute Parts Identified:

Group 1 - Direct Zener Diode Array Equivalents:

• AZ23C33-7-F (Diodes Incorporated)
• AZ23C33-E3-08 (Vishay General Semiconductor - Diodes Division)

These parts satisfy all primary substitution criteria with identical electrical specifications and package requirements.

Group 2 - Functional Alternative (TVS Diode):

• MMBZ33VALT1G (onsemi)

This part operates as a Transient Voltage Suppressor (TVS) diode with different electrical characteristics. While packaged identically in SOT-23-3 and sharing RoHS3 compliance, it exhibits different voltage ratings and power characteristics and is classified under a different component category.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Zener Diode Array Category):

AZ23C33-7-F and AZ23C33-E3-08 are qualified direct substitutes for the AZ23C33-TP. Both parts maintain identical electrical specifications (33V nominal, ±5% tolerance, 300 mW maximum power, 80 Ohms maximum impedance) and identical package designation (SOT-23-3). All three parts share Active product status, ROHS3 compliance, REACH Unaffected status, and MSL 1 rating. Selection between these three parts may be based on supplier availability, lead time, and inventory levels without requiring circuit redesign or re-qualification.

For Functional Alternative (TVS Diode Category):

MMBZ33VALT1G operates as a Transient Voltage Suppressor rather than a standard Zener diode array. While packaged identically in SOT-23-3 and sharing compliance certifications, this part exhibits fundamentally different electrical characteristics: 26V reverse standoff voltage, 31.35V minimum breakdown voltage, and 46V maximum clamping voltage. The MMBZ33VALT1G is suitable only for applications requiring TVS protection functionality and is not a direct electrical equivalent for standard voltage regulation or reference applications. Selection of this part requires circuit-level analysis and application-specific validation.

Temperature Operating Range Consideration:

The AZ23C33-TP specifies a maximum operating temperature of 175°C, while substitute parts AZ23C33-7-F, AZ23C33-E3-08, and MMBZ33VALT1G specify maximum operating temperatures of 150°C. Applications requiring operation above 150°C must retain the original AZ23C33-TP part number.

Frequently Asked Questions (FAQ)

Q: Can AZ23C33-7-F and AZ23C33-E3-08 be used interchangeably with AZ23C33-TP?

A: Yes. Both parts satisfy all primary substitution criteria: identical 33V nominal Zener voltage, ±5% tolerance, 300 mW maximum power dissipation, 80 Ohms maximum impedance, 1 Pair Common Anode configuration, SOT-23-3 package, and RoHS3 compliance. Direct substitution is supported without circuit modification.

Q: What is the key difference between the Zener diode array substitutes and MMBZ33VALT1G?

A: AZ23C33-7-F and AZ23C33-E3-08 are Zener diode arrays designed for voltage regulation and reference applications. MMBZ33VALT1G is a Transient Voltage Suppressor (TVS) diode designed for transient overvoltage protection. While both are packaged in SOT-23-3, they serve different circuit functions and have different electrical characteristics. MMBZ33VALT1G is not a direct substitute for standard Zener regulation applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. AZ23C33-TP, AZ23C33-7-F, AZ23C33-E3-08, and MMBZ33VALT1G are all ROHS3 Compliant with REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating.

Q: Does operating temperature affect substitution eligibility?

A: The AZ23C33-TP specifies maximum operating temperature of 175°C. Substitute parts AZ23C33-7-F, AZ23C33-E3-08, and MMBZ33VALT1G specify maximum operating temperatures of 150°C. For applications requiring operation above 150°C, the original AZ23C33-TP must be retained. For applications operating at or below 150°C, all four parts are compatible.

Q: What packaging formats are available for these parts?

A: All parts are available in SOT-23-3 (also designated TO-236-3 or SC-59) surface-mount package. AZ23C33-TP is supplied in Tape & Reel (TR) format. AZ23C33-7-F and AZ23C33-E3-08 are supplied in Tape & Reel (TR) format. MMBZ33VALT1G is supplied in Cut Tape (CT) & Digi-Reel® format.

Q: Can MMBZ33VALT1G replace AZ23C33-TP in a voltage regulation circuit?

A: No. MMBZ33VALT1G is a TVS diode with different electrical characteristics and is designed for transient overvoltage protection, not voltage regulation. Use of MMBZ33VALT1G in a standard Zener regulation circuit will result in incorrect circuit performance. Application-specific circuit analysis is required before considering MMBZ33VALT1G as a functional alternative.

Q: What is the impedance specification and why is it important for substitution?

A: Maximum impedance (Zzt) is specified at 80 Ohms for AZ23C33-TP, AZ23C33-7-F, and AZ23C33-E3-08. Impedance affects the dynamic response of the Zener diode to load transients and is a critical parameter for voltage regulation performance. All three Zener diode array substitutes maintain identical impedance specifications, ensuring equivalent circuit behavior.

Q: Are there inventory considerations for these substitute parts?

A: Inventory levels vary by part and supplier. AZ23C33-TP has 3,408 pieces in stock. AZ23C33-7-F has 79,311 pieces in stock. AZ23C33-E3-08 has 17,400 pieces in stock. MMBZ33VALT1G has 305,200 pieces in stock. Availability should be confirmed with the component supplier for time-sensitive procurement requirements.